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Finding the Fourth Proportional to 168,018.76, 231,871.14 and 96,411.88

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Solution

The fourth proportional to 168,018.76, 231,871.14 and 96,411.88 is: 133,051.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,018.76 : 231,871.14 = 96,411.88 : x
  2. Step 2: Convert to fraction form
    168,018.76/231,871.14 = 96,411.88/x
  3. Step 3: Cross multiply
    168,018.76x = 231,871.14 × 96,411.88
  4. Step 4: Simplify right side
    168,018.76x = 22,355,132,525.14
  5. Step 5: Solve for x
    x = 22,355,132,525.14/168,018.76
  6. Step 6: Final answer
    x = 133,051.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.